Format determining apparatus
AssigneeOnkyo Corporation
InventorKazunari ITO
Life of this patent
Estimating the term…
Abstract
A pick-up of a format determining apparatus irradiates light to an optical disk to generate a reproduction signal. A signal processing unit decodes the reproduction signal to generate main data. A CD-ROM decoder decodes the main data. A CD-ROM determining unit determines whether or not the main data is in a CD-ROM format, based on the decoded main data. A reproduction signal determining unit determines whether or not the reproduction signal is normal when the main data is not in the CD-ROM format. A system control unit determines that the main data is in a CD-DA format, when the main data is not in the CD-ROM format, and when the reproduction signal is normal.
Claims4
A format determining apparatus capable of decoding data in a CD-DA format and data in a CD-ROM format, comprising:
- a pick-up that irradiates light to an optical disk to generate a reproduction signal in accordance with reflected light;
- a signal processing unit that decodes said reproduction signal to generate main data;
- a main data decoding unit that decodes said main data;
- a CD-ROM determining unit that determines whether or not said main data is in the CD-ROM format, based on said decoded main data;
- a reproduction signal determining unit that determines whether or not said reproduction signal is normal when said main data is not in the CD-ROM format;
- and
- a format determining unit that determines that said main data is in the CD-DA format when said main data is not in the CD-ROM format and when said reproduction signal is normal.
Dependencies are inferred from the claim text.